Saclay

Saclay
Commune
Coat of arms
Location (in red) within Paris inner and outer suburbs
Location of Saclay
Saclay Show map of France Saclay Show map of Île-de-France (region)
Coordinates: 48°43′52″N 2°10′21″E / 48.731°N 2.1724°E / 48.731; 2.1724
Country	France
Region	Île-de-France
Department	Essonne
Arrondissement	Palaiseau
Canton	Gif-sur-Yvette
Intercommunality	CA Paris-Saclay
Government
• Mayor (2020–2026)	Michel Senot[1]
Area ^1	13.65 km^2 (5.27 sq mi)
Population  (2023)[2]	4,437
• Density	325.1/km^2 (841.9/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	91534 /91400
Elevation	108–161 m (354–528 ft) (avg. 147 m or 482 ft)
^1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km^2 (0.386 sq mi or 247 acres) and river estuaries.

Saclay (French: [saklɛ] ^ⓘ) is a commune in the southwestern suburbs of Paris, France. It is located 18.7 km (11.6 mi) from the centre of Paris. It is best known for the large scientific facility CEA Saclay, mostly dealing with nuclear and particle physics.

Population

Historical population

Year	Pop.	±% p.a.
1968	1,991	—
1975	2,037	+0.33%
1982	1,865	−1.25%
1990	2,894	+5.65%
1999	2,883	−0.04%
2007	3,013	+0.55%
2012	3,637	+3.84%
2017	4,029	+2.07%
2023	4,437	+1.62%
Source: INSEE[3]

Inhabitants of Saclay are known as Saclaysiens in French.

Transport

Saclay is served by no station of the Paris Métro, or suburban rail network (RER). The closest station to Saclay is Le Guichet station on Paris RER line B. This station is located in the neighboring commune of Orsay, 3.2 kilometres (2 miles) to the south of the town center of Saclay. The commune will have one station, Christ de Saclay [fr], on the under-construction Paris Metro Line 18.

See also

• Communes of the Essonne department
• Plateau de Saclay

References

1. "Répertoire national des élus: les maires". data.gouv.fr, Plateforme ouverte des données publiques françaises (in French). 2 December 2020.
2. "Populations de référence 2023" (in French). National Institute of Statistics and Economic Studies. 18 December 2025.
3. Population municipale entre 1968 et 2023, INSEE

External links

• Media related to Saclay at Wikimedia Commons
• Official website (in French)
• Community blog (in French)
• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)
• Mayors of Essonne Association (in French)